#include <iostream>  
#include <cmath>
using namespace std;  
int main() {
  char op; 
  double num1, num2, result; 
  cout << "******** CALCULATOR ********\\n";
  cout << "Enter either (+ - * /): "; 
  cin >> op; 

  cout << "Enter #1: "; 
  cin >> num1; 

  cout << "Enter #2 :"; 
  cin >> num2; 
  switch (op){
    case '+': 
        result = num1 + num2; 
        cout << "Result: " << result << endl;
        break;  
    case '-':
        result = num1 - num2; 
        cout << "Result: " << result << endl;
        break; 
    case '*': 
        result = num1 * num2; 
        cout << "Result: " << result << endl;
        break; 
    case '/':
        result = num1 / num2;
        cout << "Result: " << result << endl;
        break; 
    default: 
        cout << "That wasn't a valid response\\n"; 
        break; 

  }
  cout << "****************************\\n";

}